/**
 * 
 */
package com.financeiro.sistema;

import java.io.IOException;

import javax.servlet.Filter;
import javax.servlet.FilterChain;
import javax.servlet.FilterConfig;
import javax.servlet.ServletException;
import javax.servlet.ServletRequest;
import javax.servlet.ServletResponse;

import org.hibernate.SessionFactory;

/**
 * @author diogo.silva
 * 
 */
public class ConnectionFilter implements Filter {

	private SessionFactory sessionFactory;

	public void destroy() {

	}

	public void doFilter(ServletRequest request, ServletResponse response,
			FilterChain chain) throws IOException, ServletException {
		try {
			this.sessionFactory.getCurrentSession().beginTransaction();
			chain.doFilter(request, response);
			this.sessionFactory.getCurrentSession().getTransaction().commit();
			this.sessionFactory.getCurrentSession().close();
		} catch (Throwable ex) {
			try {
				if (this.sessionFactory.getCurrentSession().getTransaction()
						.isActive())
					this.sessionFactory.getCurrentSession().getTransaction()
							.rollback();
			} catch (Throwable ex2) {
				ex2.printStackTrace();
			}

			throw new ServletException();
		}

	}

	public void init(FilterConfig arg0) throws ServletException {
		
		this.sessionFactory = HibernatUtil.getSession();
	}

}
